"Small favors," Mattson said. "Szi, you have to have gotten something else out of your guy."

"Outside of his specific work and situation, Administrator Cainen hasn't been terribly useful," Szilard said. "And the few Eneshans we captured alive were resistant to conversation, to use a euphemism. We know the Rraey, the Enesha and the Obin are allied to attack us. But we don't know why, how or when, or what Boutin brings into the equation. We need your people to figure that one out, Mattson."

Mattson nodded to Robbins. "Where are we with that?" he asked.

"Boutin was in charge of a lot of sensitive information," Robbins said, pitching his answer to Szilard. "His groups handled consciousness transfer, BrainPal development and body-generation techniques. Any of that could be useful to an enemy, either to help it develop its own technology or to find weaknesses in ours. Boutin himself was probably the leading expert on getting minds out of one body and into another. But there's a limit to how much of that information he could carry. Boutin was a civilian scientist. He didn't have a BrainPal. His clone had all his registered brain prostheses on him, and he's not likely to have gotten a spare. Prostheses are tightly monitored and he'd have to spend several weeks training it. We don't have any network record of Boutin using anything but his registered prosthesis."

"We're talking about a man who got a cloning vat past you," Szilard said.

"It's not impossible that he walked out of the lab with a store of information," Robbins said. "But it's very unlikely. It's more likely he left only with the knowledge in his head."

"And his motivations," Szilard said. "Not knowing those is the most dangerous thing for us."

"I'm more worried about what he knows," Mattson said. "Even with just what's naturally in his head, that's still too much. I have teams pulled off their own projects to work on updating BrainPal security. Whatever Boutin does know we're going to make obsolete. And Robbins here is in charge of combing through the data Boutin left behind. If there's anything in there, we'll find it."

"I'll be meeting with Boutin's former tech after we're done here," Robbins said. "Lieutenant Harry Wilson. He says he has something I might find interesting."

"Don't let us hold you up," Mattson said. "You're dismissed."

"Thank you, sir," Robbins said. "Before I go, I'd like to know what sort of time constraint we're working under here. We found out about Boutin by attacking that base. No doubt the Eneshans know we know about their plans. I'd like to know how much time we think we have before a retaliation."

"You have some time, Colonel," Szilard said. "Nobody knows we attacked that base."

"How can they not know?" Robbins said. "With all due respect to Special Forces, General, it's difficult to hide that sort of assault. "

"The Eneshans know they've lost contact with the base," Szilard said. "When they investigate, what they're going to find is that a rocky chunk of comet the size of a football field hit the planet about ten klicks from the base, obliterating it and everything else in the immediate area. They can run all the tests they want; nothing will show anything but evidence of a natural catastrophe. Because that's what it was. It just had a little help."

"This is very pretty," Colonel Robbins said, gesturing at what looked like a miniature light show on Lieutenant Harry Wilson's holographic display. "But I don't know what you're showing me here."

"It's Charlie Boutin's soul," Wilson said.

Robbins pulled himself away from the display and looked up at Wilson. "I beg your pardon," he said.

Wilson nodded toward the display. "It's Charlie's soul," he repeated. "Or more accurately, it's a holographic representation of the dynamic electrical system that embodies the consciousness of Charles Boutin. Or a copy of it, anyway. I suppose if you want to be philosophical about it, you could argue whether this is Charlie's mind or his soul. But if what you say about Charlie is true, he's probably still got his wits about him, but I'd say he's lost his soul. And here it is."

"I was told this sort of thing is impossible," Robbins said. "Without the brain the pattern collapses. It's why we transfer consciousness the way we do, live body to live body."

"Well, I don't know that it's why we transfer consciousness the way we do," Wilson said, "since I think people would be a lot more resistant to letting a CDF technician suck their mind out of their skull if they knew it was just going to sit in computerized storage. Would you do it?"

"Christ, no," Robbins said. "I nearly wet myself as it was when they transferred me over."

"My point exactly," Wilson said. "Nevertheless, you're right. Up until this"—he motioned at the hologram—"we couldn't do it even if we wanted to."

"So how did Boutin do it?" Robbins asked.

"He cheated, of course," Wilson said. "Before a year and a half ago, Charlie and everyone else had to work with human-derived technology, or whatever technology we could borrow or steal from other races. And most other races in our part of space have more or less the same level of technology as we do, because weaker races get kicked off their land and die off or get killed. But there's one species who is light-years ahead of everyone else in the neighborhood."

"The Consu," Robbins said, and pictured one in his mind: large, crab-like and almost unknowably advanced.

"Right," said Wilson. "The Consu gave the Rraey some of their technology when the Rraey attacked our colony on Coral a couple years back, and we stole it from them when we counterattacked. I was part of the team assigned to reverse-engineer the Consu tech, and I can assure you that most of it we still don't understand. But one of the bits we could get our brains around we gave to Charlie to work with, to improve the consciousness transfer process. That's how I came to work with him; I taught him how to use this stuff. And as you can see, he's a quick study. Of course, it's easy to get things done when your tools improve. With this we went from banging rocks together to using a blowtorch."

"You didn't know anything about this," Robbins said.

"No," Wilson said. "I've seen something like this—Charlie used the Consu technology to refine the consciousness transfer process we have. We can create a buffer now that we couldn't before, which makes the transfer a lot less susceptible to failure on either end of the transfer. But he kept this trick to himself. I only found it after you told me to go looking through his personal work. Which was a lucky thing, since the machine I found this on was slated to be wiped and transferred to the CDF observatory. They want to see how well Consu tech models the inside of a star."

Robbins motioned to the hologram. "I think this is a little more important."

Wilson shrugged. "It's actually not very useful in a general sense."

"You're joking," Robbins said. "We can store consciousness."

"Sure, and maybe that is useful. But you can't do much with it," Wilson said. "How much do you know about the details of consciousness transfer?"

"Some," Robbins said. "I'm not an expert. I was made the general's adjutant for my organizational skills, not for any science background."

"Okay, look," Wilson said. "You noted it yourself—without the brain, the pattern of consciousness usually collapses. That's because the consciousness is wholly dependent on the physical structure of the brain. And not just any brain; it's dependent on the brain in which it arose. Every pattern of consciousness is like a fingerprint. It's specific to that person and it's specific right down to the genes."

Wilson pointed to Robbins. "Look at your body, Colonel. It's been deeply modified on a genetic level—you've got green skin and improved musculature and artificial blood that has several times the oxygen capacity of actual blood. You're a hybrid of your own personal genetics and genes engineered to extend your capabilities. So on a genetic level, you're not really you anymore—except for your brain. Your brain is entirely human, and entirely based on your genes. Because if it wasn't, your consciousness couldn't transfer."